Which of the hormones listed below has the most profound direct effect on the decrease of bone mass,increased resorption of bone,in response to lowered plasma calcium levels?
A)Thyroxine
B)Parathyroid hormone
C)Calcitonin
D)Cortisol
E)Insulin

Question

Quizplus · Accepted Answer

Parathyroid hormone (PTH) is responsible for the regulation of calcium levels in the blood. When calcium levels are low, PTH is released, which stimulates the osteoclasts to break down bone tissue and release calcium into the bloodstream. This process is known as bone resorption and leads to a decrease in bone mass. Therefore, PTH has the most profound direct effect on the decrease of bone mass and increased resorption of bone in response to lowered plasma calcium levels.

Which of the Hormones Listed Below Has the Most Profound